Não informado. (1958). Mineral Industries Bulletin. Colorado School of Mines.
Style de citation Chicago (17e éd.)Não informado. Mineral Industries Bulletin. Golden, Colo: Colorado School of Mines, 1958.
Style de citation MLA (8e éd.)Não informado. Mineral Industries Bulletin. Colorado School of Mines, 1958.
Attention : ces citations peuvent ne pas être correctes à 100%.